Automatic oil injector

ABSTRACT

An automatic oil injector is provided with a container; a cover detachably covering the container; a suction pipe passing through and fastening the cover, and one end of the suction pipe accommodated at the bottom of the container, and the other end of the suction pipe exposed outside the cover; an inlet hole passing through the cover, and one end of the inlet hole accommodated inside the container and the other end of the inlet hole disposed with a folding cover; a pump; the end of the suction pipe exposed outside the cover fluidly connected with an inlet port of the pump; an oil injecting pipe, one end of the oil injecting pipe fluidly connected with an outlet port of the pump; a control switch electrically connecting to the pump; an liquid level indicator disposed outside the container; and an accommodating groove connected to the container.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to a bicycle, and more particularly to an automatic oil injector for an oil tube of a bicycle.

2. Description of Related Art

In general, oil injecting bottle 200 (shown as in FIG. 1) or injection syringe 300 (shown as in FIG. 2) is usually used while repairing to replace oil.

When using the oil injecting bottle 200 (shown as in FIG. 1), an oil injecting tube 210 is fluidly connected to the oil injecting hole of the bicycle, and an oil bottle 220 filled oil is squeezed to inject oil through the oil injecting hole of the bicycle for replacing oil and repairing.

When using injecting syringe 300 (shown as in FIG. 2), an oil injecting tube 310 is fluidly connected to the oil injecting hole of the bicycle, and a push rod 320 is pressed to inject oil through the oil injecting hole of the bicycle for replacing oil and repairing.

While it is convenient to replace oil, for operators, the output quantity of oil is not easy to be controlled by hand pressing and the quality of injecting oil is not very well.

Thus, the need for improvement still exists.

SUMMARY OF THE INVENTION

It is therefore one object of the invention to provide an automatic oil injector comprising a container, having an open structure thereabove; a cover, detachably covering the container; a suction pipe, passing through and fastening the cover, and one end of the suction pipe is accommodated at the bottom of the container, and the other end of the suction pipe is exposed outside the cover; an inlet hole, passing through the cover, and one end of the inlet hole is accommodated inside the container, and the other end of the inlet hole is disposed with a folding cover; a pump, having an inlet port and an outlet port, the end of the suction pipe exposed outside the cover is fluidly connected with the inlet port of the pump; an oil injecting pipe, one end of the oil injecting pipe is fluidly connected with the outlet port of the pump; a control switch, electrically connecting to the pump for controlling the operation of the pump; an liquid level indicator, disposed outside the container for indicating the level of oil accommodating inside the container; and an accommodating groove, connected to the container for accommodating the oil injecting pipe.

The above and other objects, features and advantages of the invention will become apparent from the following detailed description taken with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of a conventional oil injector;

FIG. 2 is an outside view of the conventional oil injector;

FIG. 3 is an exploded view of an automatic oil injector according to the invention;

FIG. 4 is a perspective view of the automatic oil injector according to the invention;

FIG. 5 is a schematic diagram of an electric wire of a pump winding around and receiving in an accommodating groove in FGI. 4; and

FIG. 6 is a rear and plane view of the automatic oil injector according to the invention.

DETAILED DESCRIPTION OF THE INVENTION

Referring to FIGS. 3 to 6, an automatic oil injector 100 in accordance with the invention comprises a container 1, a cover 2, a suction pipe 3, an inlet hole 4, a pump 5, an oil injecting pipe 6, a control switch 7, a liquid level indicator 8, and an accommodating groove 9.

The container 1 may have an open structure thereabove. The cover 2 may be rectangular, but not limited thereto. The cover 2 may be detachably covering the container 1. The suction pipe 3 may be passing through and fastening the cover 2, and one end of the suction pipe 3 is accommodated at the bottom of the container 1 and the other end of the suction pipe 3 is exposed outside the cover 2. The inlet hole 4 may be passing through the cover 2, and one end of the inlet hole 4 is accommodated inside the container 1 and the other end of the inlet hole 4 is disposed with a folding cover 41. The pump 5 may have an inlet port 51 and an outlet port 52. The end of the suction pipe 3 exposed outside the cover 2 is fluidly connected with the inlet port 51 of the pump 5.

One end of the oil injecting pipe 6 may be fluidly connected with the outlet port 52 of the pump 5. The end of the oil injecting pipe 6 away from the outlet port 52 of the pump 5 may be fluidly connected to an oil hole of a bicycle (not shown) with at least one quick release structure A. With different sizes of the quick release structure, it is adapted to the sizes corresponding to different brands. And with the quick release structure, it is more convenient for users to assemble and disassemble it. In addition, the oil injecting pipe 6 may have a check valve B for preventing from the oil feedback and the air inflow to keep inside of the oil injecting pipe 6 in vacuum condition while stopping injecting oil.

The control switch 7 may be electrically connected to the pump 5 for controlling the operation of the pump 6. The control switch 7 may be a connecting switch. The power may be provided to the pump 5 by pressing the connecting switch (control switch 7) to operate the pump 5 continuously, and then the power may be stopped providing to the pump 5 by further pressing the connecting switch (control switch 7) to stop the pump 5. The liquid level indicator 8 may be disposed outside the container 1 for indicating the level of oil accommodating inside the container 1. The accommodating groove 9 may be connected to the container 1 for accommodating the oil injecting pipe 6.

The automatic oil injector 100 may further comprise a coil winding assembly 10 which is upwardly extending from the container 1 for receiving an electric wire 53 of the pump 5 to be winded around. Furthermore, the automatic oil injector 100 may further comprise a feedback hole 20 which disposed at the back of the inlet hole 4. The feedback hole 20 may make the brake oil feedback to container 1 after injecting oil. And it may prevent from wasting oil and make sure the oil is injected enough. In addition, two filters 30 are located inside the container 1 and respectively arranged under the inlet hole 4 and the feedback hole 20 for filtering impurities while filling oil or feedbacking oil. The automatic oil injector 100 may further comprise a handle 40 which is connected with the container 1 for carrying the automatic oil injector 100 easily.

While repairing, the oil injecting pipe 6 may be fluidly connected to an oil injecting hole (not shown) of a bicycle (not shown) and the pump 5 may be actuated by pressing the control switch 7, and then the oil in the container 1 may replace original oil in a brake container (not shown) of the bicycle through the suction pipe 3, pump 5, oil injecting pipe 6, the oil injecting hole of the bicycle (not shown) in series. The liquid level indicator 8 may indicate the level of oil in the container 1, that is the level of oil means that the quantity of oil remains in the container 1. When the oil in the container 1 is not enough, the folding cover 41 may be opened and new oil may be filled into the container 1 through the inlet hole 4. While finishing repairing, the oil injecting pipe 6 may be surrounded and received in the accommodating groove 9 and the electric wire 53 of the pump 5 may be wound around the coil winding assembly 10 for receiving.

While the invention has been described in terms of preferred embodiments, those skilled in the art will recognize that the invention can be practiced with modifications within the spirit and scope of the appended claims. 

What is claimed is:
 1. An automatic oil injector, comprising: a container including an open structure thereabove; a cover detachably covering the container; a suction pipe passing through and fastening the cover wherein one end of the suction pipe is accommodated at the bottom of the container and an other end of the suction pipe is exposed outside the cover; an inlet hole passing through the cover wherein one end of the inlet hole is accommodated inside the container and an other end of the inlet hole is disposed with a folding cover; a pump including an inlet port and an outlet port wherein the other end of the suction pipe exposed outside the cover is fluidly connected with the inlet port of the pump; an oil injecting pipe having one end being fluidly connected with the outlet port of the pump; a control switch electrically connected to the pump for controlling the operation of the pump; an liquid level indicator disposed outside the container for indicating the level of oil accommodating inside the container; and an accommodating groove connected to the container for accommodating the oil injecting pipe.
 2. The automatic oil injector of claim 1, further comprising a coil winding assembly upwardly extending from the container for receiving an electric wire of the pump to be wounded around.
 3. The automatic oil injector of claim 1, wherein the end of the oil injecting pipe away from the outlet port of the pump is fluidly connected to an oil hole of a bicycle with at least one quick release structure.
 4. The automatic oil injector of claim 2, wherein the end of the oil injecting pipe away from the outlet port of the pump is fluidly connected to an oil hole of a bicycle with at least one quick release structure.
 5. The automatic oil injector of claim 1, further comprising a feedback hole disposed at the back of the inlet hole.
 6. The automatic oil injector of claim 4, wherein two filters are located inside the container and respectively arranged under the inlet hole and the feedback hole.
 7. The automatic oil injector of claim 1, further comprising a handle connected with the container.
 8. The automatic oil injector of claim 1, wherein the oil injecting pipe includes a check valve for preventing from the oil feedback and the air inflow to keep inside of the oil injecting pipe in vacuum condition while stopping injecting oil. 